Welcome to the foum and thanks for asking our advice.
How many rounds have gone through that 1911? I ask because a properly broken in pistol should not require maximum loads to cycle it. (This is just my opinion, but to believe a gun manufacturer would put out a product with slide weight and recoil spring "tuned" to require maximum loads boggles my mind.)
If your slide rails are rough, or recoil spring too strong, you may want to consider tuning your pistol to a more moderate load. Do you have access to a chronograph?
By the way, when firing loads too light to cycle your pistol, how is your grip? Your hand and forearm are part of the "tuning" of your pistol, and a too-loose grip can cause failures to cycle. also. I discovered this is a handy way to practice clearance drills. Using target-power loads, I can fire my pistol and, by gripping less tightly, induce a failure mid-magazine.
Ideally, you would find a load that has adequate power, is accurate in both pistols and then tune the pistols to cycle reliably. Ensure your rails are properly worn in and lubricated (some pistols like to run "drier" than others). Then swap recoil springs, light enough to ensure cycling and heavy enough that the frame is not battered until you achieve harmony.
Good luck. Good shooting.
Lost Sheep